Websockets and better dev ui

Websockets are finally here!

Integrated websockets into the pipeline. Run chat now has stopping criteria. Example added to show how to use OVC with langchain RAG.

What's Changed

• Added vectorstore and vectorizer functionality by @Harras3 in #17
• Web api by @fakhirali in #23

New Contributors

• @Harras3 made their first contribution in #17

Full Changelog: v0.1.3...v0.1.5